On lattices of varieties of restriction semigroups
نویسندگان
چکیده
منابع مشابه
On Lattices of Varieties of Restriction Semigroups
The left restriction semigroups have arisen in a number of contexts, one being as the abstract characterization of semigroups of partial maps, another as the ‘weakly left E-ample’ semigroups of the ‘York school’, and, more recently as a variety of unary semigroups defined by a set of simple identities. We initiate a study of the lattice of varieties of such semigroups and, in parallel, of their...
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ژورنال
عنوان ژورنال: Semigroup Forum
سال: 2012
ISSN: 0037-1912,1432-2137
DOI: 10.1007/s00233-012-9439-6